Answer:
x= 12 y= -3
Step-by-step explanation:
Rearrange.
x+y=9
x-y=15
Get x by itself, cancel out the y's and you'll get this:
2x=24
x= 12
Plug it in.
12+y=9
Get y.
y= -3
Check your work. I hope this helped.
Answer:
Gretchen be cause she has 2:14
The LCM or least common denominator would be 63.
21 times 3 = 63
9 times 7 =63
Answer:
Step-by-step explanation:
12981 to the nearest thousand
2 is in the the thousands place
to the right of 2 is 9 and it is higher than 5
that means 2 becomes a 3 and the hundreds, tens and ones are zeros
13,000
Answer:x=4
Step-by-step explanation:
To solve
10(x+1)=56-2(x-1)
Open the brackets
10x+10=56-2x+2
Collect like terms
10x+2x=56-10+2
12x=48
Divide through by 12
x=4
